Digital mixer



FIG. 1 is a perspective view of the front, top and right side of a digital mixer showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom view thereof.

The broken line showing the digital mixer is included for the purpose of illustrating portions of the digital mixer and forms no part of the claimed design. 

CLAIM The ornamental design for a digital mixer, as shown and described. 